INSPIRE: Exploring living system responses to quantum states of light

INSPIRE:探索生命系统对光量子态的反应

基本信息

  • 批准号:
    1519407
  • 负责人:
  • 金额:
    $ 58.97万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2015
  • 资助国家:
    美国
  • 起止时间:
    2015-09-15 至 2019-08-31
  • 项目状态:
    已结题

项目摘要

This project is jointly funded by the following programs in the Divisions of Physics (PHY) and Chemistry (CHE) of the Directorate for Mathematics and Physical Sciences (MPS), and the Division of Behavioral and Cognitive Sciences (BCS) of the Directorate for Social and Behavioral and Economic Sciences (SBE), with co-funding from the Office of Integrative Activities: MPS/PHY/Atomic, Molecular, and Optical Physics--Experiment, MPS/PHY/Physics of Living Systems, MPS/CHE/Chemistry of Life Processes, SBE/BCS/Program on Perception, Action, and Cognition and the SBE Office of Multidisciplinary Activities. This project will test the limits of how living things detect light and study how the laws of quantum mechanics apply to biological systems. Single photons (individual particles of light) will be used to study both the human visual system and light-sensitive bacteria. In the human visual system, this project will determine whether humans can see a single photon (a longstanding question in psychology) by using a method of creating one photon at a time to test the vision of human observers. This project will also investigate what human observers see when they detect a photon in a superposition - a state of being in two places at the same time - which is allowed by quantum mechanics. Light-sensitive bacteria will also be studied using single photons, to understand the limits of light detection and the possible effects of quantum laws in a different biological system. In addition to advancing our knowledge of how living things detect and use light, this research might help us understand why particles such as photons show strange quantum behavior such as superposition, while the familiar world around us behaves differently. Making quantum effects available to human perception would also have broad popular appeal, and could be a gateway for students and the public to learn about quantum physics.To produce single photons, this project will use a well-known heralded single-photon source design based on spontaneous parametric downconversion. Single photons at 505 nm and 440 nm will be used for experiments with humans and E. coli, respectively. To determine whether humans can see single photons, observers will complete a series of trials in which they must choose whether the stimulus photon appeared on the left or the right side of their visual field. If observers are able to choose left or right with accuracy statistically greater than 50%, this is strong evidence that they can see single photons. An EEG-contingent stimulus delivery method will also be developed to improve the likelihood of detection. If single-photon vision is confirmed, a subsequent experiment will attempt a test of quantum nonlocality with a human observer replacing one single-photon detector. Finally, to test perception of superposition states, observers will be presented with both a classical mixture of photons at the left and right spots, and photons in a superposition of left and right. The observer's frequency of choosing left and right will be compared between the two cases, with any unexpected difference suggesting a deviation from standard quantum mechanics. To study phototactic bacteria (which move in response to light), individual E. coli cells will be immobilized in an IR optical trap and stimulated with single photons. In an established technique, the response of the cells can be measured by tracking their swimming and tumbling behavior with the trapping beam. Other species will be studied in following experiments, including photosynthetic Rhodobacter sphaeroides.
本项目由数学和物理科学局(MPS)的物理司(PHY)和化学司(CHE)以及社会、行为和经济科学局(SBE)的行为和认知科学(BCS)司的下列计划联合资助,并由综合活动办公室共同资助:MPS/PHY/原子、分子和光学物理-实验、MPS/PHY/生命系统物理、MPS/CHE/生命过程化学、SBE/BCS/感知、行动和认知计划以及SBE多学科活动办公室。这个项目将测试生物如何探测光的极限,并研究量子力学定律如何应用于生物系统。单光子(光的单个粒子)将被用于研究人类视觉系统和对光敏感的细菌。在人类视觉系统中,该项目将通过使用一次创建一个光子的方法来测试人类观察者的视力,从而确定人类是否可以看到单个光子(这是心理学中的一个长期问题)。该项目还将调查人类观察者在量子力学允许的情况下探测到叠加中的光子时所看到的情况。叠加是一种同时处于两个地方的状态。还将使用单光子来研究光敏细菌,以了解光检测的极限以及量子定律在不同生物系统中可能产生的影响。除了提高我们对生物如何探测和利用光的认识外,这项研究还可能帮助我们理解为什么光子等粒子表现出奇怪的量子行为,如叠加,而我们周围熟悉的世界却表现出不同的行为。将量子效应用于人类感知也将具有广泛的吸引力,并可能成为学生和公众学习量子物理的门户。为了产生单光子,该项目将使用一种著名的基于自发参数下转换的单光子源设计。505 nm和440 nm的单光子将分别用于人体和大肠杆菌的实验。为了确定人类是否能看到单个光子,观察者将完成一系列试验,在这些试验中,他们必须选择刺激光子出现在他们视野的左侧还是右侧。如果观测者能够以统计上50%以上的精度选择左或右,这就是他们可以看到单光子的有力证据。还将开发一种脑电应急刺激传递方法,以提高检测的可能性。如果单光子视觉得到确认,随后的实验将尝试用人类观察者取代一个单光子探测器来测试量子非局域性。最后,为了测试对叠加态的感知,观察者将看到左侧和右侧光点的经典光子混合,以及左侧和右侧叠加的光子。观察者选择左和右的频率将在两种情况下进行比较,任何意想不到的差异都表明偏离了标准量子力学。为了研究趋光性细菌(对光做出反应的细菌),单个的大肠杆菌细胞将被固定在红外光学陷阱中,并被单光子刺激。在一项已建立的技术中,细胞的反应可以通过跟踪它们与捕获光束的游泳和翻滚行为来测量。其他物种将在接下来的实验中进行研究,包括光合作用的球形红杆菌。

项目成果

期刊论文数量(0)
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Paul Kwiat其他文献

Photons yield to peer pressure
光子屈服于同伴压力
  • DOI:
    10.1038/35091173
  • 发表时间:
    2001-08-30
  • 期刊:
  • 影响因子:
    48.500
  • 作者:
    Paul Kwiat
  • 通讯作者:
    Paul Kwiat
Time multiplexing for high-efficiency single-photon generation
用于高效单光子生成的时间复用
  • DOI:
  • 发表时间:
    2019
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Fumihiro Kaneda;Paul Kwiat
  • 通讯作者:
    Paul Kwiat
Photons yield to peer pressure
光子屈服于同伴压力
  • DOI:
    10.1038/35091173
  • 发表时间:
    2001-08-30
  • 期刊:
  • 影响因子:
    48.500
  • 作者:
    Paul Kwiat
  • 通讯作者:
    Paul Kwiat
Towards satellite tests combining general relativity and quantum mechanics through quantum optical interferometry: progress on the deep space quantum link
  • DOI:
    10.1140/epjqt/s40507-025-00370-1
  • 发表时间:
    2025-06-20
  • 期刊:
  • 影响因子:
    5.600
  • 作者:
    Makan Mohageg;Charis Anastopoulos;Olivia Brasher;Jason Gallicchio;Bei Lok Hu;Thomas Jennewein;Spencer Johnson;Shih-Yuin Lin;Alexander Ling;Alexander Lohrmann;Christoph Marquardt;Luca Mazzarella;Matthias Meister;Raymond Newell;Albert Roura;Giuseppe Vallone;Paolo Villoresi;Lisa Wörner;Paul Kwiat
  • 通讯作者:
    Paul Kwiat

Paul Kwiat的其他文献

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{{ truncateString('Paul Kwiat', 18)}}的其他基金

QII-TAQS: Quantum-Enhanced Telescopy
QII-TAQS:量子增强望远镜
  • 批准号:
    1936321
  • 财政年份:
    2019
  • 资助金额:
    $ 58.97万
  • 项目类别:
    Standard Grant
RAISE-TAQS: Enhancing Classical and Quantum Information Capacities with Imperfect Resources: Experimental Implementations and Theoretical Bounds
RAISE-TAQS:利用不完善的资源增强经典和量子信息能力:实验实现和理论界限
  • 批准号:
    1839177
  • 财政年份:
    2018
  • 资助金额:
    $ 58.97万
  • 项目类别:
    Standard Grant
Advanced Photonic Quantum Information Processing
先进光子量子信息处理
  • 批准号:
    1520991
  • 财政年份:
    2015
  • 资助金额:
    $ 58.97万
  • 项目类别:
    Standard Grant
Advanced Tests and Applications of Quantum Nonlocality
量子非局域性的高级测试和应用
  • 批准号:
    1205870
  • 财政年份:
    2012
  • 资助金额:
    $ 58.97万
  • 项目类别:
    Continuing Grant
Methods and Applications of Multi-Photon Quantum State Synthesis
多光子量子态合成方法及应用
  • 批准号:
    1212439
  • 财政年份:
    2012
  • 资助金额:
    $ 58.97万
  • 项目类别:
    Continuing Grant
Foundations and Applications of Hyperentanglement
超纠缠的基础和应用
  • 批准号:
    0903865
  • 财政年份:
    2009
  • 资助金额:
    $ 58.97万
  • 项目类别:
    Standard Grant
ITR/SY: Foundations of Solid-State Quantum Information Processing
ITR/SY:固态量子信息处理的基础
  • 批准号:
    0121568
  • 财政年份:
    2001
  • 资助金额:
    $ 58.97万
  • 项目类别:
    Continuing Grant

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